#include <stdio.h>
#include "tab.h"

int main (void)
{
  register int i;
  for (i=0;i<MAX;i++)   t[i] = 3*i;
  f();
  printf ("Somme : %u, calcul direct = %u\n", somme, (3*MAX*(MAX-1))/2);
  return 0;
}
#include "tab.h"

unsigned int t[MAX];
unsigned int somme;

void f () 
{
  register unsigned int *p;
  register unsigned int s;

  s = 0;
  for (p=t; p<t+MAX;p++) {
    s = s + *p;
  }
  somme = s;
}


#include "tab.h"

unsigned int t[MAX];
unsigned int somme;

void f () 
{
  register unsigned int i;
  register unsigned int s;

  s = 0;
  for (i=0; i<MAX;i++) {
    s = s + t[i];
  }
  somme = s;
}


#define ASM
#include "tab.h"

                     .global  t
                     .global  somme
                     .global  f

                     .bss
t:                   .skip  MAX*4
somme:               .skip  4

                     .text

@ r0 : p,  r1 : s, r2 : t + MAX r3 : t  r4 : tmp

f:                   stmfd  sp!,{r0-r4}

                     mov   r1,#0             @ s=0
for:                 ldr   r0,=t             @ p=t
                     ldr   r2,=t+MAX*4       @ t+MAX
                     b     testfor           @ goto test_for
corpsfor:            ldr   r4,[r0]           @ s = s + *p
                     add   r1,r1,r4
                     add   r0,r0,#4          @ p++  (+1*sizeof(unsigned int))
testfor:             cmp   r0,r2             @ if (p<t+MAX) goto corpsfor
                     blo   corpsfor
finfor:
                     ldr   r4,= somme        @ somme = s;
                     str   r1,[r4]

                     ldmfd  sp!,{r0-r4}
                     mov   pc,lr
#define ASM
#include "tab.h"

                     .global  t
                     .global  somme
                     .global  f

                     .bss
t:                   .skip  MAX*4
somme:               .skip  4

                     .text

@ r0 : i,  r1 : s,  r2 : i*sizeof(unsigned int) r3 : t  r4 : tmp

f:                   stmfd  sp!,{r0-r4}

                     mov   r1,#0             @ s=0
for:                 mov   r0,#0             @ i=0
                     b     testfor           @ goto test_for
corpsfor:            ldr   r3,= t            @ s = s + t[i]
                     mov   r2,r0, LSL #2     @ i*sizeof(unsigned int)
                     ldr   r4, [r3,r2]       
                     add   r1,r1,r4
                     add   r0,r0,#1          @ i++
testfor:             cmp   r0,#MAX           @ if (i<MAX) goto corpsfor
                     blo   corpsfor
finfor:
                     ldr   r4,= somme        @ somme = s;
                     str   r1,[r4]

                     ldmfd  sp!,{r0-r4}
                     mov   pc,lr

                     .ltorg